Trolley-pole.



PATENTED DEC. 6, 1904.

c. H. SPANGLER. TROLLEY POLE.

APPLIGATION TILED FEB 14, 1903.

' 1w m nim.

'FEG.B.

Glazed/5f wryzavf NlTE STATES Patented December 6, 1904.

PATENT FFTEFW 'l'ROl.ILlEY POlLEm SPECIFICATION forming part of LettersPatent No. 776,954, dated December 6, 1904:.

Application filed February 14, 1903. Serial No. 143,405. (No model.) i

To ctZZ whom, it may concern:

Be it known that I, CHARLES H. SPANGLER, a citizen of the United States,residing at Atlanta, in the county of Fulton and State of Georgia, haveinvented new and useful Improvements in Trolley-Poles, of which thefollowing is a specification.

My invention relates to new and useful improvements in trolleys; and itsobject is to provide a device of this character the wheel of which isadapted to move laterally in relation to the pole when the trolley istraveling on a curved wire.

A further object is to provide means where by the wheel and itsconnections are held normally in alinement with the pole.

l/Vith the above and other objects in view the invention consists inproviding an extension to the pole upon the outer end of which ispivotally mounted a forked arm having a trolley-wheel journaled in thefree end thereof. A roller is connected to this arm and adapted to bearwithin a raceway formed at the upper end of the trolley-pole, and aspring is provided whereby the trolley-wheel and its arm are heldnormally in the same plane with the trolley-pole.

The invention consists in the further novel construction and combinationof parts hereinafter more fully described and claimed, and illustratedin the accompanying drawings, showing the preferred form of myinvention, and in which- Figure 1 is a front elevation of a trolleypoleconstructed in accordance with my invention, and Fig. 2 is a sideelevation thereof.

Referring to the figures by numerals of reference, 1 is a trolley-pole,the upper end 2 of which is enlarged and provided within its front facewith a curved raceway 3, which is in an arc concentric with aforwardly-extending arm 4, mounted upon the trolley-pole. To the outerend of this arm is pivoted a forked arm 5, having a trolley-wheel 6journaled therein, and this arm has a rearwardly-projecting extension 7,within the end of which is journaled a roller 8, which is adapted totravel within the raceway 3, before referred to. A spring-band 9 issecured to the arm 4t and extends through a slot 10, formed within theextension 7. This spring serves to hold arm 5 normally in the same planewith the trolley-pole l. A block 11 is preferably arranged upon the polebelow arm 4:, and the lower edge of this block is flush with the lowerend of the arm 5 and serves to prevent crosswires, SEQ, from catchingupon said arm 5 should the wheel 6 jump from the wire. When the wheel ofa trolley constructed in accordance with my invention travels upon acurved wire, the arm 5 will be moved laterally upon its pivot, therebycausing roller 8 to travel within the raceway 3. This lateral movementof the arm 5 and the wheel therein will permit said wheel to retain afirm grip upon the wire and prevent it from jumping therefrom and fromscraping upon and wearing the same.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the advantages thereof, and I therefore reserve theright to make such changes as fairly fall within the scope of myinvention.

Having thus described the invention, what is claimed as new is- 1. Thecombination with a trolley-pole; of an arm extending therefrom, araceway upon the pole in an arc concentric with said arm, a second armpivoted to said arm, a trolleywheel journaled therein, an extension tothe arm of the trollcy-wheel, a roller journaled within the extensionand adapted to bear upon the raceway, and a spring secured to the arm ofthe pole and loosely engaging said extension, whereby the trolley andits arm are held normally in a plane with the trolley-pole.

2. The combination with a trolley-pole having an arm extendingtherefrom; of a second arm pivoted to said arm, a trolley-wheeljournaled therein, said wheel and its arm being adapted to swinglaterally in relation to the pole, a block upon the pole and below thearm extending therefrom, one edge of said block being flush with an endof the forked arm. 1

8. The combination with a trolley-pole having an enlarged end providedwith a curved raceway; of an arm pivotally connected to the pole, atrolley-wheel journaled therein, an extension upon the arm, a rollertherein adapted to ride within the raceway, and a spring for exerting apressure upon the extension, where- I 0 by the wheel and its arm areheld normally in alinement with the pole.

In testimony whereof I aifix my signature in presence of two witnesses.

CHARLES H. SPANGLER. l/Vitnesses:

S. R. JOHNSTON, E. A. NORTHEN.

